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Image Cache Details »»
Image Cache
Version: 1.0.3.0, by y2ksw y2ksw is offline
Developer Last Online: Feb 2023 Show Printable Version Email this Page

Version: 3.5.4 Rating:
Released: 08-06-2006 Last Update: 08-20-2007 Installs: 77
DB Changes Uses Plugins
Additional Files  
No support by the author.

Y2K Software Image Cache

Compatible at least with vBulletin 3.5.4 and 3.6.4

Please click here for the product Import External Images for vBulletin 4

This product caches images from external sites to a local board folder (including signatures) located at:

http://www.domain.tld/[forum/]imgcache

Installation
  1. Please create at your vBulletin board directory a folder called: imgcache and give it the following access rights: CHMOD 777 (read/write/modify to all users)
  2. Create an empty index.html file in this folder to avoid file exploring and direct download on some systems.
  3. Copy the y2kswimgcache.php file to your vBulletin board (forum home) directory.
  4. Close your forum temporarily to the public.
  5. Install the product product-y2kswimagecache.xml to your board (allow overwrite if already present).
    The installer will add a table called '[prefix]y2ksw_imgcache' with one field (int ID AUTOINCREMENT) to your board database.
    Please note: Although the uninstaller is provided, it is commented out. By removing the table, and reinstalling the plugin later, the cached images would be overwritten, because of the field counter restarting from 1.
    By leaving the table in your database, you may reinstall the plugin later without collision problems.
  6. Test the product: New thread, reply, edit. If errors occur (or white pages), make sure your imgcache/ folder has the required access rights.
  7. Reopen your forum to the public.
  8. DONE!
How it works

When a board user opens a new thread or message, or edits an existing one (all advanced, quick-reply and ajax), and pastes an image from all but the local cache directory (or by copy and paste, or by specifying [IMG] tags), upon submission the image is read from the external url and written to the local (server) image cache folder.
This avoids to show a placeholder image when the source link is dead or temporarily unavailable.

The link to the image is accordingly replaced.

The script scans first all image references and creates a table of unique images in the current message. It creates a new database table entry in y2ksw_imgcache for each image, reads the new ID and creates a sequence of new images for each url it happens to be readable, and creates for each successful read an imgcache/<id>.png file.

After this sequence, the files are cached locally and may disappear from their sources without leaving an unreferenced image pointer at the local board.

Known bugs

When an image link contains dynamic data, vBulletin would show the image in preview, but change also the IMG tags to URL.
This causes to loose the reference and the plugin will not attempt to recover. A possible solution is to allow dynamic contents for IMG tags on your board.

Version history

1.0.3.0 2007-08-19 Repaired browser (IE 7) issue for images of a different file extension than the officially recognized types. For this issue, newly cached files have now the *.png extension.
1.0.2.0 2006-08-27 Image caching of signatures ([IMG] tags for signatures must be enabled); added a donation button inside readme.htm for specific user requests, which will help us to keep this product always up-to-date.
1.0.1.2 2006-08-07 Release changes for vbulletin.org
1.0.1.1 2006-08-06 Image size verification to avoid caching of invalid images
1.0.1.0 2006-07-17 Collision-free unique cache ID's
1.0.0.0 2006-07-17 Product creation

Supporters / CoAuthors

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  • This modification may not be copied, reproduced or published elsewhere without author's permission.
2 благодарности(ей) от:
dartho, xorex

Comments
  #92  
Old 02-18-2008, 02:28 PM
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y2ksw y2ksw is offline
 
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Quote:
Originally Posted by Mazinger View Post
It does.

Plus I tried uploading the php file in ASCI and in Binary mode.

I'm using 3.6.8 pl2.

Any other clues?

... And folder name is imgcache not imagecache.

Also, I'm using IE6.
Right
Quote:
Originally Posted by Mazinger View Post
Any other clues?
Sorry, no other ideas ...
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  #93  
Old 02-18-2008, 07:12 PM
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Mazinger Mazinger is offline
 
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Is there any other php/server requirements/conditionals that this hack wouldn't work with?
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  #94  
Old 02-18-2008, 09:55 PM
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y2ksw y2ksw is offline
 
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Maybe if fopen() would not work. But at this point you would not be able to save attachments on your server as well.
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  #95  
Old 02-27-2008, 07:08 AM
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Mazinger Mazinger is offline
 
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I just checked, and fopen() is off in the php info. Is there any way to enable it via .htaccess?
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  #96  
Old 02-27-2008, 01:37 PM
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y2ksw y2ksw is offline
 
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Not as far as I know, sorry.
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  #97  
Old 03-16-2008, 05:01 PM
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ChurchMedia ChurchMedia is offline
 
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Hi -- I've been using Image Cache since 2006. Today the imgcache folder is completely empty except for an index.html file! ALL of the images cached for almost 2 years are GONE! Does anyone have any idea what may have caused this? Is there a directory size limit in PHP or something? I hope they are still there and just unreadable...
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  #98  
Old 03-16-2008, 09:55 PM
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y2ksw y2ksw is offline
 
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Would it be possible the access rights of the folder have changed and you have no READ and/or LIST permission?
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  #99  
Old 03-16-2008, 10:10 PM
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ChurchMedia ChurchMedia is offline
 
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I have a dedicated server and I have full management over it. I discovered about an hour ago that all of my profile pix have been deleted as well. Myself and a server wiz-kid from Seattle are looking into it. He doesn't think we are being hacked. It may have something to do with GD. UG! Either way it's a nightmare and I'm going to pay for daily backups now.

So, your mod is fine (it's great, in fact )!
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  #100  
Old 03-16-2008, 11:50 PM
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y2ksw y2ksw is offline
 
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Phew (for me)

Anyway I've checked the code and there is no possibility of an accidental deletion.
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  #101  
Old 05-15-2008, 02:15 AM
GlitterKill GlitterKill is offline
 
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installed on VB 3.7 and working great! Thanks! I have been looking for something like this for a long time!
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